Switch-lock.



. G. SKAGLIN. SWITCH LOCK. APPLICATION FILED OCT. 13, 1915.

Patented Get. 10, 1916.

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GEORGE SKAGLIN, F TUSTIJET, MICHIGAN.

SVJITCH-LOCK.

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Specification of Letters Patent.

Patented oat. so, ieic.

Application filed Qctober 13, 1915. Serial No. 55,727.

To (6 whom it may concern Be it known that I, GEORGE SKAGLIN, a citizen of the United States, residing at, 'lustin, in the county of Osceola, State of l'vlichigan, have invented certain new and useful Improvements in Switch-Locks; and I do hereby declare the following to be a lull, clear, and exact description of the in= vention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to switch locks and is particulznly adapted for use in connec; tion with the switch of an automobile ignition circuit.

The object, of the invention is to provide a lock of the character named embodying an improved construction, and which will be simple efficient and comparatively inexpensive to manufacture.

\Vith the above and other objects in view the invention consists in the details of construction and in the arrangement and combination of parts to he hereinafter more fully described and particularly pointed out in the appended claims.

In describing the invention in detail reference will he had to the accompanying drawings wherein like characters of refer once denote correspomling parts in the several views, and. in which Figure l is a front view of a lock constructed in accordance with the invention; Fig. 2, a view similar to Fig. 1 with the front side of the casing removed and the parts in the position they would occupy when the switch is closed; Fig. 3, a viewsiinilar to Fig. 2 with the parts in the position they would occupy when the switch is locked opened; Fig. r, a top view oi the lock with the top of the casing removed; Fig. 5, a View similar to Fig. i withthe parts in the position shown in Fig. Fig. 6, a section on the line 6-6 of Fig. 3, and. Fig. 'Z, a section on the line 77 of Fig. 3.

Referring to the drawings the invention is shown comprisingn casing A includ ing a rear wall 10 and a front wall 11. Mounted on the rear wall 10 is a frame 12 which supports terminals 13 and let adapted to be connected in the ignition circuit of an automobile. Pivoted to the terminal 1% is a knife 15'Wl1l0l1 can he moved into and out of engagement with the terminal 13 as will he obvious. lhcsc terminals 13 and 1e: and the knife 15 of course constitute the switch of the ignition circuit. in the walls 10 and 11 is a pluralitv of shafts 16, 17 and 18'and fixed upon these shafts within the casing A are disks 19, 20 and 21 respectively. Formed in the rear wall 10 is a triangular opening 29- in which is slidahly mounted the triangular enlargement 23 of a bar 2% which latter is also slidahly mounted in the wall 11 and is pivotally connected to the knife 15 so that by sliding said bar the knife 15 can be moved into and out of engagement with the terminal 13. The disks 19, 20 and 21 are provided respectively with notches 25 which in R-otatably mounted certain positions of said disk register with a portion of the openings 22.

Pivoted upon the wall 10 is a locking lever 26 which is normally urged to locking position by a spring 27. The lever 26 is provided with a notch 28 while the disk 20 carries a projection '29 adapted to engage the lever when the disk 20 is rotated in one direction and lift said lever out of locking position. Opposite rotation. of the disk 20 will cause the projection 29 to engage in'the notch 28 and then pass under the lever 26 so as not to interfere with the rotation of the disk in that direction. \Vhen the disks are positioned as shown in Fig. 2 the notches will register with portions of the opening 2- so that the bar 2% can he moved longitudinally to engage and disengage the knife 15 with and from the terminal 13. It will he noted however that when the knife 15 is disengaged from the terminal 13 the enlargement :23 will move out of the opening 22 and the locking lever 26 will move behind the enlargement 21) and thus lock the knife 15 out of engagement with the terminal 13 and maintain the ignition circuit broken. After this condition arises the disks 19, 20 and 21 are rotated so as to dispose the notches 25 out of registration with the opening 22 when the lockin of the switch in open position is complete. 'To release the lock disks liland 21 are rotated to dispose the notches 25 in the position shown in Fig. 2 and the disk 20.

is rotated to the left to raise the lever 26 out of locking position and dispose the notch 25 thereof in registration with the opening 22. when the knife 15 can be moved to close the ignition circuit associated. Mounted on each shaft l6, l7 and 18 ad acent the outer face of the wall 11 is a pomterBO and ar ranged around each of said shaft-s on the outer face of the wall 11 is a dial 31. By

, rotate bly mounted .knife; whereby of the bar, and said disk this means the lock can be readily set to a desired combination and operated with convenience by utilizing the relation between respective pointers and the associated dial.

,VV hat is claimed is 2- 1. In a, device of the class described the combination of a casing, a frame mounted on the casing, circuit terminals carried by the frame, a switch knife pivoted to one terminal and moved into and out of engagement With the other terminal, a plurality of shafts in opposite walls of the casing, a bar slidably mounted in opposite walls ofthecasing and connected to said the sliding of the bar will move the knife into and out of engagement -With one of the circuit terminals, an enlargement on said bar adapted to move in an opening in the wall of the casing adjacent the frame, a disk mounted on each of said shafts within the casing and provided with a notch adapted to register with the opening in one position of said disk to permit sliding being movable behind the enlargement knife is out ofengagement with the circuit terminal whereby the bar islocked against movement in a direction to engage the knife with the circuit terminal.

on the bar when the 2. In a device of the class described, the

combination of a casing, a frame mounted on said casing, an electric switch carried by the frame a bar slidably mounted in the casing and connected to the switch to open and close the latter, an enlargement on-said bar adapted for movement in an opening in the wall of the casing, a shaft rotatably mounted in the casing, a disk fixed on said shaft and provided with a notch adapted to register with the opening in one position to permit sliding movement of the bar, and said disk being adapted to be moved behind the enlargement when the switch is opened to lock the bar against movement to close the switch, a locking lever mounted in the casing, spring means constantly tending to move the lever toward the bar whereby said lever will pass behind the enlargement when the-switch is opened, and means on the disk engageable with the lever to move the. latter to released position when said disk is rotated in one direction.

In testimonywhereofil afiiX my signature in the presence of two witnesses.

GEORGE SKAGLIN.

Vitnesses:

" AARON ERICKSQN,

M. CUSI-IMAN. 

